Improvement in pencil-sharpeners



W. H. KEYES. Pencil-Sharpener.

No. 199,448. Patented Jan.22,1878.

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UNITED STATES PATENT OEEICE.

WALTER H. KEYES, OF EAST PRINCETON, MASSACHUSETTS.

IMPROVEMENT IN PENCIL-SHARPENfERS.

Specification forming part of Letters Patent No. 199,448, dated January22, 1878; application filed December 15, 1877.

To all whom 'it may concern:

ABe it known that I, WALTER H. KEYES, of

, East Princeton, in the county of Worcester and means of screws, andhaving a knife crooked either by springing or forging, and set at suchan angle'with the point of the pencil that it will cut the pencil alittle faster, in proportion to the circumference, at the point than itdoes back on the pencil, as willbe hereinafter more fully set forth.

l ln the annexed drawings, to which reference is made, and which fullyillustrate this invention, Figures 1 and 2 are side views of my improvedpencil sharpener. Fig. 3 is an end view of the same; and Fig. 4 is ahorizontal section on the line w az, Fig. 2.

A represents the conical barrel or body of the pencil-Sharpener,provided with an inclined opening along the side to receive theknifeblade B. The knife B rests against a shoulder, a, which has a bendor angle at a', as seen in Fig. l, so that the knife will be bent atthis point, and the edge of its lower end be slightly beyond the wall ofthe hole or core of the bar- Y rel A. This bend in the knife begins justbefore the point of the pencil.

In this sharpener, if the pencil is pushed in very hard, the knifecannot cut so fast in proportion at the back as at the point of thepencil. The pencil, therefore, binds at the back, and the tendency is tothrow the pencil out of the barrel, instead of (as when the knife has auniform slope with the taper of the pencil, and cuts equally as fast inall places in the taper) tearing the pencil to pieces.

The knife-blade B is made adjustable, so that it can be sharpened anindefinite number of times.

l have shown the blade adjusted by means of screws b b passing into theface, which the blade rests on. Thus the ends of the knife will passunder the heads of the screws; but the vknife may be slotted and thescrews pass through slots.

The bend in the knife need not be very greatonly so a-s to shave off thelead at a little more of an obtuse angle than the wood. The bend in theknife may be made by forging it in proper shape, or by simply springingin into shape. y

Having thus fully described my invention, what l claim as new, anddesire to secure by Letters Patent, is

In a pencil-Sharpener consisting of a conical barrel, A, and knife-bladeB, the blade adjusted by' means of screws b, and arranged with a bend,substantially as described, whereby the-point will be cut alittle fasterthan the wood, as set forth.

In testimony that I claim the foregoing as my own I have hereto aixed mysignature in presence of two witnesses.

WALTER H. KEYES. Witnesses: i

WM. H. BROWN, E. S. BROWN.

